Key-controlled valve



Jan. 29, 1929.

J. J. DUNN KEY CONTROLLED VALVE Filed April '7, 1927 l I g Patented Jan.29, 1929.

UNITED. STATES A 1,700,474 PATENT OFFICE.

JOHN J. DUNN, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO WILLIAMA.

MACE, OF DORCHESTER, MASSACHUSETTS.

KEY-CONTROLLED VALVE.

Application filed April 7,

This invention relates to a key-controlled valve, especially adapted foruse on automobiles and like motor vehicles for safeguard. ing the sameagainst theft.

To this end, the gasoline supply pipe leading to the engine or motor ofthe vehicle is provided with a valve casing having a valve which iscoupled with a rotatable member of a lock of the Yale type so as to beoperated by the key which operates the lock, said-valve being closedbythe operator of the car when he leaves the same, and being opened whenhe desires to use the car.

The particular features of the invention will be pointed out in theclaim at the end of this specification.

Fig. 1 represents a portion of an automobile provided with akey-controlled valve embo dying this invention;

Fig. 2, a view in section and elevation of the key-controlled valveshown in Fig. 1, the valve being shown in its closed position;

Fig. 3, a similar view showing the valve open, and

Fig. 4, a side elevation of Fig. 2 looking toward the left.

Referring to the drawing, 10 represents a valve casing provided with afluid passage 12, which is controlled by a rotatable valve 13 having abore 14, which is adapted to registerwith the passage 12 in the openposition of the valve, as shown in Fig. 3.

The valve casing 10 is provided with a lateral extension or hollow boss15 provided with an annular flange 16 to which is secured as by screws17, the casing or barrel 18 of a lock, preferably of the Yale type andwhich will be referred to as the Yale lock.

The Yale lock is of well-known construction and is provided with amember 20, which in the ordinary use of the lock operates the usualbolt.

In the present instance the member 20 of the lock is connected with therotary valve 13, so as to operate the same, when the member 20 is turnedby a key 21, which is individual to each Yale look.

In the present instance, the operating member 20 of the Yale lock iscoupled with the rotary valve 13 by providing the latter at its rear endwith a transverse, substantially narrow slot 22, into which theoperating member 20 is extended, as shown in Figs. 2 and 3.

By providing the valve casing 10 with the laterally extended hollow boss15, the Yale 1927. Serial No. 181,686.

lock of standard construction as now found on the market can be utilizedwithout change, as the hollow boss 15 is made of the proper length toreceive the operating member 20 and have it engaged with the rotaryvalve 13 When the barrel 18 of the Yale lock is fastened to thehollowbox 15 of the valve casing.

By reference to Fig. 2, it will be seen that the rotary valve 13 isclosed, which is effected by turning the key 21 into the position shownby dotted lines in Fig. 4. The valve may be left locked in its closedposition by withdrawing the key from the lock.

When it is desired to open the valve, the

key 21 is inserted into the lock and turned into substantially theposition shown in Fig. 3, and indicated by full lines in Fig. 4, inwhich the valve is in its open position. The key-controlled valve hereinshown is especially adapted among other uses to be employed onautomobiles and like vehicles as a protection against theft, and in Fig.1, the valve casing 10 is shown as connected in the gasoline supply pipe30 for the internal combustion engine or motor (not shown) of theautomobile 31.

As herein represented, the valve casing 10 is included in the pipe 30leading from the vacuum tank 32 to the carbureter (not shown) and theYale lock is supported by a plate or bar 33 secured to the dash 34 andfloor board 35, the disk or end plate 36 on the barrel 18 of the Yalelock being secured as by screw bolts 37 to the bar or plate 33.

From the above description and by reference to Fig. 1, it will be seenthat when the operator desires to use the car, he inserts the key 21into the Yale lock and turns the key so as to rotate the valve 13 fromits closed position in Fig. 2, into its open position shown in Fig. 3,which allows the gasoline to flow from the vacuum tank 32 or othersource of supply to the carbureter of the engine or motor.

When the operator leaves the car,'l1e turns the key 21 so as to closethe valve, as represented in Fig. 2, and then withdraws the key, and aseach Yale lock is operated by its individual key, the car is safeguardedagainst theft, for the only supply of gas available to the thief, isthat in the carbureter, which would be exhausted before the car could bedriven any material distance, and when this supply of gas was exhausted,it could not be run any farther.

' With studs or pins 40, 4:1 to arrest movement of the key 21 and theparts operated by it, when the valve 13 is in its closed and openpositions, the pin 6L0 being engaged by the key 21 when the valve 13 isin its open position and the pin 41 being engaged by the key when thevalve is in its closed position.

What I claim is:

In a device of the character described, in

combination, a valve casing provided with a valve and With a hollow bossextended laterally beyond said valve and having an outwardly-extendedflange, and a lock of the Yale type having its barrel provided with aflange at its inner end co-operating with the flange on said hollow bossand with a flange at its outer end spaced apart from said inner flangeand provided with a key-operated member projecting into said hollow bossand operatively connected with said valve, and means for securing theinner flange on said barrel to the flange on said hollow boss.

In testimony whereof, I have signedcmy name to this specification,

JOHN J CERTIFICATE OF CORRECTION,

Patent No. 1,700,474. Granted January 29, 1929, to

JOHN J. DUNN.

It is hereby certified that the above numbered patent was erroneouslyissued to the inventor and William A. Mace, of Dorchester,Massachusetts, as assignee of one-half interest in said invention,whereas said "Mace" should have appeared as owner of one-fourth interestonly, as shown by the records of assignments in this office; and thatthe said Letters Patent sheuld he read with this correction therein thatthe same may conform to the record of the case in the Patent Office.

Signed and sealed this 19th day of February, A. l). 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.

